DE502444C - Protection arrangement against earth faults for electrical, single-pole earthed heating resistors of track vehicles using weakly insulated auxiliary wires - Google Patents

Protection arrangement against earth faults for electrical, single-pole earthed heating resistors of track vehicles using weakly insulated auxiliary wires

Info

Publication number
DE502444C
DE502444C DEV23248D DEV0023248D DE502444C DE 502444 C DE502444 C DE 502444C DE V23248 D DEV23248 D DE V23248D DE V0023248 D DEV0023248 D DE V0023248D DE 502444 C DE502444 C DE 502444C
Authority
DE
Germany
Prior art keywords
electrical
heating resistors
protection arrangement
earth faults
arrangement against
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEV23248D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner AG
Publication date
Priority to DEV23248D priority Critical patent/DE502444C/en
Application granted granted Critical
Publication of DE502444C publication Critical patent/DE502444C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Description

Schutzanordnung gegen Erdschluß für elektrische, einpolig geerdete Heizwiderstände von Gleisfahrzeugen unter Verwendung schwach isolierter Hilfsdrähte Beim Einbau von elektrischen Heizwiderständen -in Eisenbahnwagen u. dgl. liegt in den meisten Fällen das eine Ende der Heizwicklung unmittelbar an Erde, während das andere Ende über eine Sicherung oder einen LTberstromschalter an die Spannung gelegt wird. Erfolgt nun nahe der Erdungsstelle ein Erdschluß, so erhöht sich die Normalstromstärke, die jedoch nicht in der Lage ist, die Abschaltung des Heizkörpers einzuleiten, so daß an dieser Erdschlußstelle ein langsames Verbrennen aller Teile eintritt, wodurch ein Brand in dem Wagen möglich wird. Dieser Fehler -wird in der Weise beseitigt, daß man in ähnlicher Weise, wie man es bei Kabeln schon gemacht hat, einen Isolierhilfsleiter neben den Widerstand verlegt, dessen Isolation gegen den Widerstand gering ist. Tritt dann am Heizwiderstand ein Fehler ein, so wird der bis dahin keinen Strom führende Spannungsdraht mit seinem einen Ende an Erde gelegt werden. Das andere Ende liegt über einer Schaltspule am Netz. Die Schaltspule erhält dadurch Spannung und bewirkt mittel- oder unmittelbar das Abschalten des Heizkörpers. In der Zeichnung bezeichnet a den Heizkörper, b einen Ausschalter, c den am Heizkörper entlang geführten Spannungsdraht, d d!ie Schaltspule. Tritt an dem mit einem Kreuz bezeichneten Punkte ein Erdschluß ein, so -wird an dieser Stelle auch die Isolation von c verletzt werden. Es geht ein Strom von b über die Schaltspule d, den Spannungsdraht c zur Erde; die Schaltspule spricht an und öffnet den Schalter b, wodurch die Abschaltung des Heizkörpers n erfolgt.Protective arrangement against earth faults for electrical, single-pole earthed Heating resistors of rail vehicles using weakly insulated auxiliary wires When installing electrical heating resistors -in railroad cars and the like in most cases one end of the heating winding directly to earth, while the the other end is connected to the voltage via a fuse or an overcurrent switch will. If an earth fault now occurs near the earthing point, the normal current strength increases, which, however, is not able to initiate the shutdown of the radiator, so that at this earth fault a slow burning of all parts occurs, whereby a fire in the car becomes possible. This error - is eliminated in such a way, that you have an insulating auxiliary conductor in a similar way as you have already done with cables laid next to the resistor, the insulation of which against the resistor is low. If an error then occurs in the heating resistor, it will not generate any current until then one end of the leading voltage wire is connected to earth. The other The end lies above a switching coil on the network. The switching coil receives voltage as a result and causes the radiator to switch off directly or indirectly. In the drawing a denotes the radiator, b an off switch, c the one that is guided along the radiator Voltage wire, the switching coil. Step on the point marked with a cross If an earth fault occurs, the insulation of c will also be damaged at this point. A current goes from b via the switching coil d, the voltage wire c to earth; the Switching coil responds and opens switch b, which shuts down the radiator n takes place.

Claims (1)

PATEN TANSPRUCFI: Schutzanordnung gegen Erdschluß für elektrische, einpolig geerdete Heizwiderstände von Gleisfahrzeugen unter Verwendung schwach isolierter Hilfsdrähte, dadurch gekennzeichnet, daß der Hilfsdraht (c) an dem Widerstand (a) entlang geführt wird und über ein Relais (d) an Spannung liegt, so daß bei einem im Leiter (a) z. B. durch die erhöhte Wärme verursachten Isolationsfehler das Relais anspricht und die Abschaltung des Heizwiderstandes durch einen Schalter (h) bewirkt. PATEN TANSPRUCFI: Protection arrangement against earth faults for electrical, single-pole earthed heating resistors of rail vehicles using weakly insulated auxiliary wires, characterized in that the auxiliary wire (c) is led along the resistor (a) and is connected to voltage via a relay (d), see above that in one in the head (a) z. B. due to the insulation fault caused by the increased heat, the relay responds and the heating resistor is switched off by a switch (h).
DEV23248D Protection arrangement against earth faults for electrical, single-pole earthed heating resistors of track vehicles using weakly insulated auxiliary wires Expired DE502444C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV23248D DE502444C (en) Protection arrangement against earth faults for electrical, single-pole earthed heating resistors of track vehicles using weakly insulated auxiliary wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV23248D DE502444C (en) Protection arrangement against earth faults for electrical, single-pole earthed heating resistors of track vehicles using weakly insulated auxiliary wires

Publications (1)

Publication Number Publication Date
DE502444C true DE502444C (en) 1930-07-11

Family

ID=7580406

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV23248D Expired DE502444C (en) Protection arrangement against earth faults for electrical, single-pole earthed heating resistors of track vehicles using weakly insulated auxiliary wires

Country Status (1)

Country Link
DE (1) DE502444C (en)

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